My little girl is sick

My SO and i had daughter this weekend. She had been coughing through the week and had told us she got sick from her sister at her mom's. We had been giving her cough medicine when we had her on our days during the week. Her cough seemed worse this weekend as she couldn't even sleep and was coughing constantly. We had given her cough medicine a few hours before bedtime but it didnt seem to work. We got the humidifier put put some Vicks on her chest and gave her a small spoon full of honey to calm her throat. And she immediately calmed down. Yesterday her mom called and my SO had told her she was starting to get better and of course she completely got upset at him for not informing her that daughter was sick but then proceeded to say that daughter told her during the week that he had said daughter got sick from her sister. Mom obviously knew she was sick and said we did everything wrong because daughter is supposed to use a nebulizer to prevent getting sick and we dont know how asthma works. The odd thing is my SO has asthma and a nebulizer and knows what it is used for. Daughter has a cold she wasnt having an asthma attack and has never had one while with us. I understand the nebulizer would have helped her breathing but it wouldnt get rid of her cold. Mom then asked in a very rude tone if we gave her medicine. My SO replied nicely saying yes we have been doing that all week on our days and all weekend and had just went and got more. Mom has a habit of taking daughter to the doctor for every little thing and has done that in the past when my SO tells her about daughter not feeling well she runs right over takes her during our time and then says she will just keep her because she is sick. My SO now informs her after our time is up if its not serious or life threatening. We would gladly take daughter to the dr on our time if mom would give us a copy of the insurance card for daughter but she wont so we always have to wait for her to take daughter. I dont get how a mother can put her own needs of being controlling over her daughter's health and safety especially if it were an emergency situation. Last time we tried calling her when daughter came home from school with pink eye, it took 3 hours before she called back saying her phone died but was posting pictures on social media of her out with her friends during that time and then proceeded to come pick up daughter and take her to urgent care an hour before bedtime. When they got back it was another hour before her mom left because she wouldn't leave daughter alone. Its frustrating because daughter gets sick every month and we know her mom doesnt do anything to help that. she lets daughter run around outside when its cold barefoot with no jacket and brings her over with no shoes on or jacket when its cold and then says its our fault. Sorry for the rant im just so frustrated with her accusations.